Heavy Duty Easy Install 25-120kg Fire Rated Slide Back Concealed Door Closer
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| Customization: | Available |
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| After-sales Service: | Long Term |
| Warranty: | 3 Years |
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Basic Info.
- Model NO.
- QN-081R
- Material
- Aluminum Alloy
- Type
- Embedded
- Installation Type
- Standard
- Function
- Stop, Fixed, Delay, Adjustable, Buffered
- Standard
- American and European Standard
- Remote Control
- Without Remote Control
- Door Width
- 600mm-1250mm
- Door Weight
- 25kg-120kg
- Usage
- Market, Fire Exits, Home, Hotel, Office, Hospital, School
- Color
- Upon Request
- Speed Control
- Speed Adjustable
- Feature
- Durable
- Design Style
- Modern
- Package Type
- One PCS /One Inner Box, Ten PCS / One Carton
- Transport Package
- White Box or Color Box, Carton Packing
- Specification
- Aluminum alloy
- Trademark
- QINIU MACHINE or OEM
- Origin
- China(Mainland)
- HS Code
- 83026000
- Production Capacity
- 500000 Pieces/Year
Packaging & Delivery
- Package Size
- 48.00cm * 11.50cm * 5.00cm
- Package Gross Weight
- 2.500kg
Product Description
Heavy Duty Slide Back Concealed Door Closer for 25-120kg Door Weight


| Technological Data | |
| Power Size | EN2-5 Adjustable |
| Applicable door weight | 25-120kg |
| Applicable door width | 600-1250mm |
| Function | Back Check or Hold Open |
| Feature | 90° positioning and non-positioning possible |
| Closing speed | Adjustable |
| Standard | Products comply with CE, EN1154 standards |
| Work Temperature | -40ºC~60ºC |
| Test Cycles | 1 Milion |





| Specifications for Other Models | ||||
| Item No | QN-117 | QN-119 | QN-213 | QN-310 |
| Material | Aluminum Alloy | |||
| Door Weight | 40-65KG | 60-90KG | 100-150KG | 60-90KG |
| Door Width | 600-1200mm | 800-1300mm | 900-1300mm | 600-1250mm |
| Installation dimensions | 162*19mm | 188*19mm | 299*19mm | 60*38mm |
| Working Temperature | -40ºC~60ºC | |||
| Max Opening Angle | 180 Degree or Marking 90 Holdopen | |||
| Function | Stop, Adjustable, Buffered | |||
| Feature | Dual valves to adjust the closing and latching speed | |||
| Color | Silver, gold, white, black, brown, bronze | |||
| Warranty | 3 years | |||
| The Endurance Testing | Durability test 1 million times | |||




Since the establishment of Hebei Qiniu Machinery Equipment Co., Ltd., we have experienced significant growth and development. We focus on expanding our expertise in various industries, specializing in hardware locks, door control systems, all types of door and window hardware products, including machinery and equipment, auto parts, electronic products, electronic placement, hardware and daily necessities. Through continuous research and development efforts, we have been able to meet the changing market needs and provide innovative solutions.
·International Trade Planning:
As part of our growth strategy, we have actively engaged in international trade to expand our global reach. We have established strong partnerships and distribution networks in different regions, enabling us to effectively market and sell our products worldwide. Our team of international trade experts is well-versed in the complexities of global trade regulations and can provide seamless support for import and export activities.
·Team Spirit:
At our company, we believe that a strong and motivated team is the key to success. We have a diverse and talented workforce consisting of professionals from various backgrounds and expertise. Our employees are passionate about their work and are committed to delivering high-quality products and services. We foster a collaborative and inclusive work environment that encourages creativity, innovation, and continuous learning.
Win-win situation, develop together. We are looking for partners all over the world to join us and work together.
(1)Inquiry---provide us all clear requirements (total quantity and package details).
(2)Quotation---official quotation from with all clear specifications from our professional team.
(3)Marking Sample---confirm all quotation details and the final sample.
(4)Production---mass production.
(5)Shipping---by sea or by air.
2.How do you ship the products?
By Sea, By Air, By courier, TNT, DHL, Fedex, UPS Etc. It is up to you.
3.What is the average delivery time?
Sample usually takes about 10-20 days depending on product type. Bulk order usually takes about 35 days.
4.What terms of payment you use?
As for the payment terms,it depends on the total amount.
5.How would I get a price list for a wholesaler?
Please e-mail us, and tell us about your market with MOQ for each order. We would send the competitive price list to you ASAP.
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